Results 81 to 90 of about 3,781 (217)

The evolution of reproduction in Ediacaran–Cambrian metazoans

open access: yesBiological Reviews, Volume 100, Issue 5, Page 2084-2098, October 2025.
ABSTRACT The evolution of reproductive style is a fundamental aspect of metazoan life history but has not been explored holistically through the Ediacaran–Cambrian rise of metazoans. Recent molecular clock analyses based on only unequivocal metazoan fossil calibrations suggest that Porifera were present by at least 590 million years ago (Ma), all major
Rachel A. Wood, Mary L. Droser
wiley   +1 more source

Evolution of g-type lysozymes in metazoa: insights into immunity and digestive adaptations

open access: yesFrontiers in Cell and Developmental Biology
Exploring the evolutionary dynamics of lysozymes is critical for advancing our knowledge of adaptations in immune and digestive systems. Here, we characterize the distribution of a unique class of lysozymes known as g-type, which hydrolyze key components
Krishanu Mukherjee   +2 more
doaj   +1 more source

Multiple Mammalian Cytokines and Erythropoietin‐Mimetic Peptides Protect Insect Neurons via Phylogenetically Conserved Cytokine Receptor‐Like Factor 3 (CRLF3)

open access: yesJournal of Neurochemistry, Volume 169, Issue 9, September 2025.
Mammals express five different structurally related cytokine type I receptors: erythropoietin‐receptor, thrombopoietin‐receptor, prolactin‐receptor, growth hormone‐receptor and cytokine receptor‐like factor 3 (CRLF3). Of these, only CRLF3 exists in insects and other eumetazoan invertebrates.
Nina Hahn   +10 more
wiley   +1 more source

A Reassessment of the Coprostane Biomarker in the Ediacaran With Implications for Dickinsonia

open access: yesGeobiology, Volume 23, Issue 4, July/August 2025.
ABSTRACT The discovery of cholestane in animal fossils from the Ediacaran (571–541 million years ago) has generated much excitement, but it is not the only interesting biomarker recovered. Coprostane, a geologically stable form of coprostanol, has also been found in Ediacaran rocks.
Christopher Mulligan, David A. Gold
wiley   +1 more source

Origin and evolution of the Rax homeobox gene by comprehensive evolutionary analysis

open access: yesFEBS Open Bio, 2020
Rax is one of the key transcription factors crucial for vertebrate eye development. In this study, we conducted comprehensive evolutionary analysis of Rax.
Tetsuo Kon, Takahisa Furukawa
doaj   +1 more source

First record of Placozoa from the Gulf of Mexico

open access: yesHidrobiológica, 2017
Placozoa is a phylum with only one species:Trichoplax adhaerens (F. E. Schulze, 1883); recent genetic studies suggest, however,that several haplotypes inhabit tropical and subtropical waters around the world. Placozoans have been found usually close to littoral zones where mangrove forests occur. Goals. To provide the second record of this species from
Tania Shazel Ortega Tecuatl   +2 more
semanticscholar   +3 more sources

A Network Approach to White Band Disease Challenged Staghorn Coral Acropora cervicornis microRNAs and Their Targets

open access: yesEcology and Evolution, Volume 15, Issue 4, April 2025.
Our study looks at the association between microRNA expression and disease resistance in Caribbean staghorn corals infected with White Band Disease. We find three microRNAs differentially expressed due to disease resistance with putative targets involved in innate immunity.
Brecia A. Despard   +3 more
wiley   +1 more source

Разнообразие клеточных типов у гаплотипа H4 Placozoa sp.

open access: yesMarine Biological Journal, 2019
Placozoa is one of the five basal metazoan lineages critical for our understanding of animal evolution in general, and the origin of neuromuscular organization in particular.
Д. Ю. Романова
semanticscholar   +2 more sources

The Buds of Oscarella lobularis (Porifera, Homoscleromorpha): A New Convenient Model for Sponge Cell and Evolutionary Developmental Biology

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 342, Issue 8, Page 503-528, December 2024.
We describe a technique for triggering asexual reproduction by budding in vitro and have monitored bud development. The natural properties of Oscarella lobularis buds and the technical tools we developed make them a new biological system for getting insights into sponge molecular and cellular processes.
Caroline Rocher   +19 more
wiley   +1 more source

Origin and evolution of microvilli

open access: yesBiology of the Cell, Volume 116, Issue 11, November 2024.
Microvilli are widespread organelles of animal cells that frequently play a role in sensation and feeding. Ansel et al. reconstitute their origin and evolution by performing a broad morphological survey of microvilli in animals and their unicellular relatives, coupled with a bioinformatic study of the phylogenetic distribution of the main microvillar ...
Mylan Ansel   +3 more
wiley   +1 more source

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